Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 393 · 40 questions

How to do it in your head (Look first): A 9, 19 or 99 → round and adjust. Two close numbers → count up (or near doubles when adding). × or ÷ by 4 or 8 → double or halve; other sums → split into tens and ones.

1. 1.98 − 49 =
2. 2.37 children stand in rows of 9. How many full rows can they make?
3. 3.88 + 66 =
4. 4.2 + ? = 10
5. 5.80 + 48 =
6. 6.28 + 7 =
7. 7.55 laddoos are packed in boxes of 6. How many laddoos are left over?
8. 8.5% of ₹360 =
9. 9.16² =
10. 10.510 − 475 =
11. 11.216 ÷ 4 =
12. 12.A cricket match starts at 5:45 and the first innings ends at 7:50. How many minutes did the innings last?
13. 13.73 + 81 =
14. 14.19 + 7 =
15. 15.10% of ₹80 =
16. 16.78 + 83 =
17. 17.A film starts at 7:25 and ends at 10:35. How many minutes long is the film?
18. 18.91 children stand in rows of 6. How many full rows can they make?
19. 19.Best estimate of 498 + 500? (a) 1000 (b) 800 (c) 1200
20. 20.A train leaves at 4:40 and reaches the next city at 7:50. How many minutes is the journey?
21. 21.You start your homework at 6:40 and finish at 9:50. How many minutes did you work?
22. 22.26 + 6 =
23. 23.98 × 5 =
24. 24.41 laddoos are packed in boxes of 4. How many laddoos are left over?
25. 25.23 + 25 =
26. 26.31 + 49 =
27. 27.A train leaves at 2:15 and reaches the next city at 3:40. How many minutes is the journey?
28. 28.You start your homework at 2:25 and finish at 3:25. How many minutes did you work?
29. 29.80 + ? = 100
30. 30.114 − 76 =
31. 31.64 ÷ 4 =
32. 32.10% of ₹130 =
33. 33.510 − 479 =
34. 34.19 + 3 =
35. 35.9 + ? = 10
36. 36.You buy a kite for ₹466 and pay with a ₹500 note. How much change do you get, in rupees?
37. 37.25 + ? = 100
38. 38.Double 42 =
39. 39.126 children stand in rows of 8. How many full rows can they make?
40. 40.25 × 4 =

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